TI-2021-19857 Aliases CVE-2021-44159 GHSA-2pg3-5vwj-wh4m

4MOSAn GCB Doctor - Unrestricted Upload of File

MEDIUM 48CWE-434Published 2021-12-20 · Updated 2024-09-17

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

4MOSAn GCB Doctor’s file upload function has improper user privilege control. A remote attacker can upload arbitrary files including webshell files without authentication and execute arbitrary code in order to perform arbitrary system operations or deny of service attack.

Why it matters now

EPSS 0.03521 89th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
4MOSAn	GCB Doctor	up to 20210811(2.0)	—	No fix listed	CNA

GCB Doctor Vendor4MOSAn Affected up to 20210811(2.0) Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:4mosan:gcb_doctor::::::::	before 2021-09-16	Vulnerable	4MOSAn

cpe:2.3:a:4mosan:gcb_doctor:*:*:*:*:*:*:*:* Versions before 2021-09-16 Vulnerable ·4MOSAn

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-44159
2026-10-03 Alias added: GHSA-2pg3-5vwj-wh4m

References

Advisory 1

https://www.twcert.org.tw/tw/cp-132-5395-eee40-1.html

TI-2021-18768 4MOSAn GCB Doctor - Improper Authorization CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences